Goosebumps 2: Haunted Halloween (or simply Goosebumps 2 as marketed on home release) is a 2018 American horror comedy film directed by Ari Sandel and written by Rob Lieber from a story by Lieber and Darren Lemke. A stand-alone sequel to 2015's Goosebumps, it is based on the children's horror book series of the same name by R. L. Stine. The new cast consists of Wendi McLendon-Covey, Madison Iseman, Jeremy Ray Taylor, Caleel Harris, Chris Parnell and Ken Jeong. The plot follows a pair of young boys who accidentally unleash the monsters of the Goosebumps franchise upon their hometown after opening an unpublished Goosebumps manuscript, causing a wave of destruction on Halloween night.

Development of the film began in September 2015. Rob Letterman intended to return to direct, but dropped out due to scheduling conflicts with Detective Pikachu, so Ari Sandel replaced him as director. Jack Black and Odeya Rush were set to reprise their roles as R. L. Stine and Hannah Fairchild, respectively; Black's role was uncredited and Rush's role was ultimately not included in the final script.

Goosebumps 2 was released in the United States on October 12, 2018, by Sony Pictures Releasing under its Columbia Pictures label. The film received mixed reviews from critics and was not as successful as its predecessor, grossing $93 million worldwide against its $35 million budget, but still a commercial success.